Skip to main content

Advertisement

Table 8 Reasons for failure of collars and tags

From: Three decades of wildlife radio telemetry in India: a review

Manufacturers and technology Number of collars Collars failed during use (%) Collars dropped Antenna broken or collar damaged Signal stopped Battery drained Contact lost or unknown
Advanced Telemetry Systems
VHF 46 6.5 2 - - - 1
African Wildlife Tracking
VHF beacon 2 50 - - 1 - -
GPS-UHF 2 100 - - 2 - -
AVM Instruments
VHF 7 100 - - 2 5 -
VHF backpack 17 94 - - - 13 3
Biotrack
VHF 1 0 - - - - -
HABIT
VHF 6 100 - - - 6 -
GPS-VHF 3 66.6 2 - - - -
GPS-UHF 1 100 - - 1 - -
Holohil Ltd
VHF implant 2 100 - - - - 2
Lotek
VHF beacon 1 100 - - - 1 -
GPS-Argos 3 100 - 2 1 - -
Nippon
PTT backpack 5 40 - - - 2 -
Sirtrack
PTT backpack 71 90 - - - - 64
Telonics
VHF 96 27 8 1 7 10 -
VHF implant 4 100 - - - 4 -
PTT backpack 4 0 - - - - -
VHF beacon 5 0 - - - - -
Argos-only 1 100 1 - - - -
GPS-Argos 9 11 1 - - - -
Vectronics
VHF beacon 1 100 - - - 1 -
GPS-Argos 1 100 - - 1 - -
GPS-Iridium 4 75 - - 1 2 -
GPS-UHF 2 100 - - - 2 -
GPS-GSM 5 80 1 - 3 - -
Wildlife Computers
PTT backpack 1 100 - - - - 1
Wildlife Materials
VHF 30 26.7 2 1 - 4 1
Total 330 49.1 17 4 19 50 72
  1. GSM, global system for mobile communication; GPS, global positioning system; PTT, platform terminal transmitter; UHF, ultra-high frequency; VHF, very high frequency.